<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card >
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span = '8'> 
                    <el-input placeholder="请输入搜索内容" v-model="queryInfo.query" 
                    clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search"
                         @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <!-- 添加用户 -->
                <el-col :span = '4'>
                    <el-button type="primary" @click= "addDialogVisible = true" >添加用户</el-button>
                </el-col>
            </el-row>
                <!-- 用户数据表格 -->
             <el-table :data = "userList" border stripe>
                <el-table-column type = "index" label="#"></el-table-column>
                <el-table-column prop="username" label="姓名"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column label="状态" >
                    <template slot-scope ="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)" ></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope ="scope">
                        <el-button type="primary" icon="el-icon-edit" size = 'mini' 
                        @click="showEditDialog(scope.row.id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size = 'mini'
                        @click="removeUserById(scope.row.id)" ></el-button>
                         <el-tooltip  effect="dark" content="分配角色" placement="top" :enterable = "d=false">
                              <el-button type="warning" icon="el-icon-setting"
                               size = 'mini' @click="addRoleDailog(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>       
            </el-table>  
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange"  @current-change="handleCurrentChange" slot=""
            :current-page="queryInfo.pagenum" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper"
            :total="total"  :page-sizes="[1, 2, 5, 10]">
            </el-pagination>

            <!-- 添加用户的对话框 -->
            <el-dialog title="添加用户" :visible.sync="addDialogVisible" 
            width="50%"  @close="addDialogClosed">  
            <!-- 内容主体区           -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
            </el-dialog>   

            <!-- 修改用户的对话框 -->
            <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" 
            width="50%" @close="editDialogClose">
           <!-- 内容主体区 -->
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名" >
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>                
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
            </el-dialog>

            <!-- 分配角色的对话框 -->
             <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" 
            width="50%" @close="setRoleDialogClose">
           <!-- 内容主体区 -->
            <div>
                <p>当前的用户: {{userInfo.username}}</p>
                <p>当前的角色：{{userInfo.role_name}}</p>
                <p>分配新角色：
                        <el-select v-model="selectedRoleId" placeholder="请选择分配的角色">
                            <el-option
                            v-for="item in rolesList"
                            :key="item.id"
                            :label="item.roleName"
                            :value="item.id">
                            </el-option>
                        </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
            </el-dialog>

        </el-card>

        
    </div>
</template>

<script>
export default {
    data(){
        //自定义校验规则
        //验证邮箱的校验规则
        var checkEmail = (rule,value,callback) =>{
            //验证邮箱的正则表达式
           const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/ 
           if(regEmail.test(value)){
               return callback()
           }
           callback(new Error("请输入合法邮箱"))
        }
        //验证手机号码的校验规则
        var checkMobile = (rule,value,callback) =>{
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
           if(regMobile.test(value)){
               return callback()
           }
           callback(new Error("请输入正确的手机号码"))
        }
        return{
            //获取用户列表的参数对象
            queryInfo: {
                query: '',
                pagenum : 1,
                pagesize: 3
            },
            userList: [],
            total: 0,
            //控制添加用户框的显示与隐藏
            addDialogVisible: false,
            // 添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            //控制修改用户对话框的显示与隐藏
            editDialogVisible: false,

            //查询到的用户信息对象
            editForm:{},
            //添加表单的验证规则
            addFormRules:{ 
                 username:[
                    { required: true, message: '请输入用户名称', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ],
                email:[
                    { required: true, message: '请输入邮箱地址', trigger: 'blur' },
                    { validator:checkEmail, trigger: 'blur' }
                ],
                mobile:[
                    { required: true, message: '请输入手机号码', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur', }
                ],           
            },  
            // 编辑用户信息的验证规则
            editFormRules:{          
                email:[
                    { required: true, message: '请输入邮箱地址', trigger: 'blur' },
                    { validator:checkEmail, trigger: 'blur' }
                ],
                mobile:[
                    { required: true, message: '请输入手机号码', trigger: 'blur' },
                    { validator: checkMobile, trigger: 'blur', }
                ],           
            },
            //控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            //需要被分配角色的用户信息
            userInfo:{},
            //所有角色的数据列表
            rolesList:[],
            //已选中的角色id值
            selectedRoleId:''
           
        }
    },
    created(){
        this.getUserList()
        
    },
    methods:{
        async getUserList(){
        const  {data : res} = await this.$http.get('users', {params:this.queryInfo })
        //console.log(res);
        if(res.meta.status !== 200) return this.$message.error('获取用户列表失败!')
        this.userList = res.data.users
        this.total = res.data.total
        },

        //监听pagesize 改变的事件
        handleSizeChange(newSize){
        this.queryInfo.pagesize = newSize
        this.getUserList()
        },
     //监听页码值改变的事件
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        //监听 switch开关状态的改变
        async userStateChange(userinfo){
            //修改用户状态
        const {data : res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
        console.log(res);
        if(res.meta.status !== 200){
            userinfo.mg_state = !userinfo.mg_state
            return this.$message.error("更新用户状态失败!")
          } 
        this.$message.success("更新用户状态成功")
        },
        //监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮，添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid =>{
                if(!valid) return 
                //可以发起添加用户的网络请求
                const {data : res} = await this.$http.post('users',this.addForm)
               // console.log(res);
                if(res.data.status !== 201){
                    this.$message .error('添加用户失败！')
                }
                this.$message.success('添加用户成功')
                //隐藏添加用户的对话框
                this.addDialogVisible = false
                //重新获取用户数据
                this.getUserList()
            })

        },
        //展示修改用户信息对话框
       async showEditDialog(id){
            //console.log(id);
            const {data : res} = await this.$http.get('users/'+ id)
            if(res.meta.status !== 200) {
                return this.$message.error("查询用户信息失败")
            }
            this.editForm = res.data
            //console.log(res);
            this.editDialogVisible = true          
        },
        //监听修改用户对话框的关闭事件
        editDialogClose(){
            this.$refs.editFormRef.resetFields()
        },
        //修改表单时发起预验证并提交
        editUserInfo(){
            this.$refs.editFormRef.validate( async valid =>{
                if(!valid) return
                //发起数据请求
                const {data : res} = await this.$http.put('users/' + this.editForm.id,{email:
                    this.editForm.email,mobile:this.editForm.mobile})
                if(res.meta.status !==200) {
                    return this.$message.error("更新用户信息失败")
                }
                //关闭对话框
               this.editDialogVisible = false
               //刷新数据列表
               this.getUserList()
               //提示更新成功
                this.$message.success("更新用户信息成功")
            })
        },
        //根据ID删除用户信息
        async removeUserById(id){
            const confirmResult =  await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', 
            {confirmButtonText: '确定', cancelButtonText: '取消',type: 'warning'
            }).catch(err => err)
            //如果用户确认删除，返回cancle
            //如果用户确认删除，返回confirm
            if(confirmResult !== 'confirm'){
                return this.$message.info('已取消删除')
            }
            const {data :res}= await this.$http.delete('users/'+ id)
            console.log(res);
            if(res.meta.status !== 200){
                this.$message.error('删除失败')
            }
            this.$message.success('删除成功')
            this.getUserList()
            //console.log(confirmResult);
            },

        //展示分配角色
       async addRoleDailog(userInfo){
            this.userInfo = userInfo
            //在展示对话框之前获取所有角色的列表
            const {data :res} = await this.$http.get('roles')
            if(res.meta.status !== 200){
              return this.$message.error('获取角色列表失败')
            }
            this.rolesList= res.data
            //console.log(res.data)          
            this.setRoleDialogVisible = true
        },

        //点击确认后分配角色
        async saveRoleInfo(){
            if(!this.selectedRoleId ){
               return this.$message.error('请选择要分配的角色') 
            }
            const {data : res} = await this.$http.put(`users/${this.userInfo.id}/role`,
            {rid: this.selectedRoleId})
            if(res.meta.status !== 200){
                return this.$message.error("分配角色失败")
            }
            this.$message.success("更新角色成功")
            this.getUserList()
            //console.log(res);
            this.setRoleDialogVisible = false
        },
        setRoleDialogClose(){
           this.selectedRoleId=''
           this.userInfo={}
        }
    }   
}
</script>

<style lang="less" scoped>


</style>